GB2120484B - Improvements in or relating to amplifiers - Google Patents

Improvements in or relating to amplifiers

Info

Publication number
GB2120484B
GB2120484B GB08312985A GB8312985A GB2120484B GB 2120484 B GB2120484 B GB 2120484B GB 08312985 A GB08312985 A GB 08312985A GB 8312985 A GB8312985 A GB 8312985A GB 2120484 B GB2120484 B GB 2120484B
Authority
GB
United Kingdom
Prior art keywords
amplifiers
relating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB08312985A
Other versions
GB2120484A (en
GB8312985D0 (en
Inventor
Brian Owen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB8312985D0 publication Critical patent/GB8312985D0/en
Publication of GB2120484A publication Critical patent/GB2120484A/en
Application granted granted Critical
Publication of GB2120484B publication Critical patent/GB2120484B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
    • H03F3/082—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light with FET's
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/16—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with field-effect devices
    • H03F3/165—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only with field-effect devices with junction-FET's
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/02—Shaping pulses by amplifying
    • H03K5/023—Shaping pulses by amplifying using field effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H04B10/691—Arrangements for optimizing the photodetector in the receiver
    • H04B10/6911—Photodiode bias control, e.g. for compensating temperature variations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
GB08312985A 1982-05-17 1983-05-11 Improvements in or relating to amplifiers Expired GB2120484B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/378,739 US4420724A (en) 1982-05-17 1982-05-17 FET Amplifier with wide dynamic range

Publications (3)

Publication Number Publication Date
GB8312985D0 GB8312985D0 (en) 1983-06-15
GB2120484A GB2120484A (en) 1983-11-30
GB2120484B true GB2120484B (en) 1985-09-11

Family

ID=23494362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08312985A Expired GB2120484B (en) 1982-05-17 1983-05-11 Improvements in or relating to amplifiers

Country Status (7)

Country Link
US (1) US4420724A (en)
EP (1) EP0108792B1 (en)
CA (1) CA1186754A (en)
DE (1) DE3366794D1 (en)
GB (1) GB2120484B (en)
IT (1) IT1171670B (en)
WO (1) WO1983004147A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553108A (en) * 1983-11-09 1985-11-12 Rockwell International Corporation Low noise feedback amplifier
US4563656A (en) * 1984-11-05 1986-01-07 Gte Laboratories Incorporated Wideband transimpedance optical receiver
GB2167259B (en) * 1984-11-21 1988-02-10 Stc Plc Optical fibre receiver
JP2600069B2 (en) * 1985-09-14 1997-04-16 工業技術院長 Light sensor
US4751473A (en) * 1985-11-05 1988-06-14 Mitsubishi Denki Kabushiki Kaisha FET amplifier circuit
DE3623135A1 (en) * 1986-07-09 1988-01-28 Telefunken Electronic Gmbh Optical amplifier
US4801893A (en) * 1986-09-10 1989-01-31 Frank L. VanAlstine Forward transimpedance amplifier
GB8625409D0 (en) * 1986-10-23 1986-11-26 Rca Corp Switchable mode amplifier
US4737733A (en) * 1986-10-29 1988-04-12 Rca Corporation Overdrive control of FET power amplifier
FR2620283B1 (en) * 1987-09-08 1989-12-01 Thomson Csf DEVICE FOR CONTROLLING THE OUTPUT POWER OF A CLASS C AMPLIFIER
GB8728853D0 (en) * 1987-12-10 1988-01-27 Bt & D Technologies Ltd Transimpedance pre-amplifier & receiver including pre-amplifier
DE3814041A1 (en) * 1988-04-26 1989-11-09 Standard Elektrik Lorenz Ag CONTROLLABLE AC VOLTAGE AMPLIFIER
US4882482A (en) * 1988-10-26 1989-11-21 Tektronix, Inc. Thermally stabilized optical preamplifier
US4889985A (en) * 1988-10-26 1989-12-26 Tektronix, Inc. Combined optical power meter and receiver
GB2233525B (en) * 1989-06-09 1994-02-16 Stc Plc Optical receivers
US5107104A (en) * 1989-10-18 1992-04-21 Fuji Photo Film Co., Ltd. Photoelectric transducer having photosensitive chromoprotein film, i.e. bacteriorhodopsin
US5017884A (en) * 1989-11-01 1991-05-21 Perandi Aado J Vacuum tube and MOSFET transimpedance amplifier
DE3942936A1 (en) * 1989-12-23 1991-06-27 Standard Elektrik Lorenz Ag BROADBAND AMPLIFIER LEVEL WITH CONTROLLABLE GAIN
DE4107849A1 (en) * 1991-03-12 1992-09-17 Licentia Gmbh PN photodiode optical amplifier with integral feedback - utilises resistive feedback line to maintain photodiode operating parameters in response to varying light conditions
US5304949A (en) * 1992-12-14 1994-04-19 Motorola Inc. Common base amplifier
US5347231A (en) * 1993-02-23 1994-09-13 Associated Universities, Inc. Low noise charge sensitive preamplifier DC stabilized without a physical resistor
CA2147670A1 (en) * 1994-06-06 1995-12-07 Liang David Tzeng An improved transimpedance amplifier circuit for use in an optical receiver
EP1002363B1 (en) * 1997-08-12 2002-11-06 WOLTER, Klaus Device for transforming into voltage signals weak electric currents impressed by a non-ideal electric current source at the inlet of same device
EP1263129A1 (en) * 2001-05-21 2002-12-04 Agilent Technologies, Inc. (a Delaware corporation) DC feedback control circuit
US7215883B1 (en) 2003-01-24 2007-05-08 Jds Uniphase Corporation Methods for determining the performance, status, and advanced failure of optical communication channels
US7002131B1 (en) 2003-01-24 2006-02-21 Jds Uniphase Corporation Methods, systems and apparatus for measuring average received optical power
JP2011123191A (en) * 2009-12-09 2011-06-23 Roland Corp Key operation speed detection device of electronic musical instrument

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51113555A (en) * 1975-03-31 1976-10-06 Japan Atom Energy Res Inst Self-feedback-type low noise electric charge amplifier
JPS5448146A (en) * 1977-09-24 1979-04-16 Matsushita Electric Ind Co Ltd Amplifying device

Also Published As

Publication number Publication date
IT8321107A0 (en) 1983-05-13
US4420724A (en) 1983-12-13
WO1983004147A1 (en) 1983-11-24
DE3366794D1 (en) 1986-11-13
IT1171670B (en) 1987-06-10
CA1186754A (en) 1985-05-07
IT8321107A1 (en) 1984-11-13
GB2120484A (en) 1983-11-30
EP0108792A1 (en) 1984-05-23
EP0108792B1 (en) 1986-10-08
GB8312985D0 (en) 1983-06-15
EP0108792A4 (en) 1984-09-19

Similar Documents

Publication Publication Date Title
DE3374505D1 (en) Improvements in or relating to transimpedance amplifiers
GB2117703B (en) Improvements in or relating to fire-barriers
GB2120484B (en) Improvements in or relating to amplifiers
GB2127408B (en) Improvements in or relating to benzimidazoles
GB2114841B (en) Improvements in or relating to amplifier circuits
EG15899A (en) Improvement in or relating to n-arybenzamide derivatives
IL70075A0 (en) Improvements in or relating to 3-aryl-5-pyrazole derivatives
GB2122708B (en) Improvements in or relating to link means
DE3163900D1 (en) Improvements in or relating to 3-aryl-5-isothiazole derivatives
GB2080062B (en) Improvements in or relating to amplifiers
GB2127336B (en) Improvements in or relating to presses
GB2155654B (en) Improvements in or relating to eyeguards
PH15678A (en) Improvements in or relating to pyrazinobenzodiazepines
GB2123279B (en) Improvements in or relating to barbecues
DE3360928D1 (en) Improvements in or relating to multimeters
GB2129672B (en) Improvements in or relating to drawers
GB2109671B (en) Improvements in or relating to supports
PT72477B (en) Improvements in or relating to amino-fibres
GB2082997B (en) Improvements in or relating to conveyors
DE3363813D1 (en) Improvements in and relating to substituted tetrahydrona phthalenes
GB2121635B (en) Improvements in or relating to linear amplifier circuits
GB2114722B (en) Improvements in or relating to furnaces
GB2133056B (en) Improvements in and/or relating to cribwalling
GB2149532B (en) Improvements in or relating to holograms
GB2145899B (en) Improvements in or relating to telecines

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee